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Online/Offline Signatures for Low-Power Devices

机译:低功耗设备的在线/离线签名

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摘要

When digital signature is applied on low-power devices, like smart cards, wireless sensors and RFID tags, some specific properties, e.g., better offline storage, more modular and flexible deployment, are desired. To meet these needs, a new variant of the Fiat–Shamir transformation for digital signatures, referred to as $Gamma$ -transformation, is introduced and formalized in this work. Following this new transformation approach, some new signature schemes (referred to as $Gamma$-signatures) are presented and discussed. In particular, it is shown that the $Gamma$-signatures for discrete logarithm problem (DLP) developed in this work combine, in essence, the advantages of both Schnorr's signature and the digital signature standard (DSS), while saving from the disadvantages of them both.
机译:当在智能卡,无线传感器和RFID标签等低功率设备上应用数字签名时,需要一些特定的属性,例如更好的脱机存储,更模块化和灵活的部署。为了满足这些需求,在这项工作中引入了菲亚特-沙米尔数字签名的新变体,称为$ Gamma $ -transformation。按照这种新的转换方法,将介绍和讨论一些新的签名方案(称为$ Gamma $签名)。特别是,可以看出,在这项工作中开发的离散对数问题(DLP)的$ Gamma $签名在本质上结合了Schnorr签名和数字签名标准(DSS)的优点,同时避免了以下缺点:他们俩。

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